Portable phonograph



May 19, 1925 s. DAVIDSON PORTABLE ruonoemrn Eilgq, n 925 mm: R 54111Mun/190w ummvsrs WIT 8858 Patented May 19, 1925.

UNITED STATES SAUL DAVIDSON, OF NEW YORK, N. Y.

PORTABLE PHONOGRAPH.

Application filed June 8,

To all whom it may concern:

Be it known that I, SAUL DAVIDSON, a citizen of the United States, and aresident of the city of New York, borough of the Bronx, in the county ofBronx and State of New York, have invented a new and Improved PortablePhonograph, of which the following is a full, clear, and exactdescription.

This invention has relation to talking machines and has particularreference to an improvement in portable phonographs.

One of the main obstacles to the produc tion of a compact portablephonograph is due to the proiection of the tone arm above the turntablewhich necessitates a high enough cover to compensate for the housing ofthe same. In some instances this has been overcome to some extent bymaking the tone arm detachable from the amplifying chamber for storagein a separate compartment or in the amplifying chamber.

It is, therefore, the principal object of the present invention toprovide a tone arm which is automatically lowered to an out-ofthe-wayposition upon closure of the cover whereby the tone arm will be disposedbelow the plane of the turntable and whereby upon opening of the coverthe tone arm will be automatically raised to a proper relation to theturntable for cooperation therewith.

More specifically the invention contemplates a portable phonograph inwhich the amplifying member and tone arm are constructed as a separateunit having connection with the cover whereby said unit is automaticallylowered upon closure of the cover and raised upon opening of the coverin order to dispose the tone arm below the plane of the turntable whenthe cover is closed and to properly position the same when the cover isopened and the unit is raised to coact with the turntable.

As a still further object the invention contemplates an improvement inphonographs which does not materially complicate the structure orincrease the cost of production while functioning to reduce the bulk orsize of the same to a minimum.

With the above recited and other objects in view, the invention residesin the novel construction set forth in the following specification,particularly pointed out in the appended claims and illustrated in theaccompanying drawings, it being understood that t ght s res r ed oembodiments other 1923. Serial No. 644,213.

than those actually illustrated herein to the full extent indicated bythe general meaning of the terms in which the claims are expressed.

In the drawings Figure 1 is a plan view of a portable phonographconstructed in accordance with the invention and illustrating the coverin opened position and the tone arm in a position to cooperate with theturntable.

Fig. 2 is a fragmentary sectional view therethro-ugh taken approximatelyon the line 2-2 of Fig. 1.

Fig. 3 is a similar view with the cover in closed position and the tonearm and amplifier in lowered position.

Fig. 1 is a fragmentary detail sectional view taken approximately on theline 41 of Fig. 1.

Referring to the drawings by characters of reference, designates thebox-like body of the phonograph which is provided with a horizontalstationary bed 11 adjacent its upper open end over which the turntable12 is arranged for rotation. A cover 13 is hinged to the upper edge ofthe rear wall as at 14 for swinging movements to open or closedposition. The bed 11 terminates an appropriate distance from the rearwall and has hinged thereto for downward swinging movement a shelf 15 bymeans of hinges 16. The tone arm 17 is swiveled as at 18 to the upperside of the shelf and communicates with the amplifying chamber 18 whichis defined beneath the shelf by a substantially U-shaped member 20. Theshelf is provided with an opening 21 which communicates with theamplifying chamber at the opposite end from that with which the tone armcommunicates to afford an outlet for the sound from the amplifyingchamber. The sound box 22 is carried in the usual manner by the free endof the tone arm and the retaining screw 23 for holding the needles inthe sound box is designed to cooperate with a hook 24 provided on theshelf 15. A connecting bar 25 is hinged as at 26 to the inside of thecover and hinged as at 27' to the shelf 15 whereby the shelf and coverare connected for simultaneous movement. From this construction it willbe seen that the tone arm and sound amplifying means comprise a separateunit from the turntable and bed. The connection between the shelf 15 andthe cover 13 functions upon closing of the cover to automatically swingthe shelf downwardly whereby the tone arm is disposed below the plane ofthe turntable and in an out of the way position in order not tointerfere with the cover. This connection further serves upon opening ofthe cover to raise the shelf 15 and the tone arm whereby said shelf isdisposed in horizontal alignment and in the same plane with the bed 11to permit the tone arm to properly cooperate with a record when placedon the turntable. The connection further operates as a means for holdingthe cover against swinging beyond a predetermined point when open. Thehook 24: which engages the screw 23 serves to connect the tone arm withthe shelf while in lowered position or during its movement to or fromits lowered position.

I claim:

1. A portable phonograph, comprising a body having a hinged cover, a bedover which a' turntable is mounted, a box-like member hinged to the bedand defining an amplifying chamber having an inlet opening and an outletopening in its upper wall, a tone arm swiveled to the upper wall of saidmember and having communication with the inlet opening, and a connectionbetween the cover and said box-like member operable upon closing of thecover to swing the member downward for disposing the tone arm below theplane of the turntable and functioning upon opening of the cover toswing the member upwardly to dispose its upper wall in a plane with thebed whereby to position the tone arm for cooperation with the turntable.Y

2. In a portable phonograph, a body or casing having a hinged cover, abed over which a turntable is mounted, a box-like amplifying memberhinged to the bed, hav ing inlet and outlet openings, a tone armswiveled to theupper wall of the amplifying member and communicatingwith the inlet opening, a connection between the cover and amplifyingmember operable upon closing the cover to swing the amplifying memberdownwardly for disposing the tone; arm below the plane of theturntable'andiunctioning upon opening of the cover to swing theamplifying member upwardly with its upper wall in a plane with the bedwhereby to dispose the tone arm in position for cooperation with theturntable, and means for connecting the free end of the tone arm withthe amplifying member when lowered or during the movement of the same.

SAUL DAVIDSON.

